:root {
    --color-primary: #0B3D91;
    --color-primary-dark: #072d6a;
    --color-accent: #16A34A;
    --color-text: #111827;
    --color-muted: #4B5563;
    --color-background: #F3F4F6;
    --color-surface: #FFFFFF;
    --color-highlight: #F59E0B;
    --color-border: #E5E7EB;
    --color-footer: #0F172A;

    --color-dark-bg: #111827;
    --color-dark-surface: #1F2937;
    --color-dark-text: #F9FAFB;
    --color-dark-muted: #D1D5DB;

    --font-base: 'Inter', 'Roboto', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-md: 0 10px 30px rgba(15, 23, 42, 0.08);

    --max-width: 1200px;
    --radius-lg: 18px;
    --radius-md: 12px;
    --radius-sm: 8px;

    --transition-fast: 0.2s ease-in-out;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font-base);
    color: var(--color-text);
    background-color: var(--color-background);
    line-height: 1.65;
}

body.dark-mode {
    background-color: var(--color-dark-bg);
    color: var(--color-dark-text);
}

img {
    display: block;
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover,
a:focus {
    color: var(--color-primary-dark);
}

body.dark-mode a {
    color: #60A5FA;
}

section {
    padding: 80px 0;
}

.container {
    width: min(100% - 32px, var(--max-width));
    margin-inline: auto;
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h2 {
    font-size: 2.25rem;
    margin-bottom: 16px;
    font-weight: 700;
}

.section-header p {
    margin: 0 auto;
    max-width: 760px;
    color: var(--color-muted);
}

body.dark-mode .section-header p {
    color: var(--color-dark-muted);
}

h1, h2, h3, h4 {
    color: var(--color-text);
    font-weight: 700;
    margin-top: 0;
}

body.dark-mode h1,
body.dark-mode h2,
body.dark-mode h3,
body.dark-mode h4 {
    color: var(--color-dark-text);
}

p {
    margin-bottom: 1.25rem;
    color: var(--color-muted);
}

body.dark-mode p {
    color: var(--color-dark-muted);
}

ul {
    padding-left: 1.15rem;
    color: var(--color-muted);
}

body.dark-mode ul {
    color: var(--color-dark-muted);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 24px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: background-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
    text-align: center;
}

.btn-primary {
    background-color: var(--color-primary);
    color: #FFFFFF;
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--color-primary-dark);
}

.btn-secondary {
    background-color: rgba(11, 61, 145, 0.1);
    color: var(--color-primary);
}

.btn-secondary:hover,
.btn-secondary:focus {
    background-color: rgba(11, 61, 145, 0.18);
}

body.dark-mode .btn-secondary {
    background-color: rgba(96, 165, 250, 0.15);
    color: #BFDBFE;
}

body.dark-mode .btn-secondary:hover,
body.dark-mode .btn-secondary:focus {
    background-color: rgba(96, 165, 250, 0.25);
}

.eyebrow {
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.08em;
    color: var(--color-highlight);
    font-weight: 600;
    margin-bottom: 16px;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(243, 244, 246, 0.98);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}

body.dark-mode .site-header {
    background-color: rgba(17, 24, 39, 0.96);
    border-bottom-color: rgba(75, 85, 99, 0.4);
}

.header-container {
    display: grid;
    grid-template-columns: auto 1fr auto auto;
    align-items: center;
    gap: 24px;
    padding: 14px 0;
}

.logo img {
    border-radius: 0;
}

.main-nav ul {
    list-style: none;
    margin: 0;
    display: flex;
    gap: 24px;
}

.main-nav a {
    font-weight: 500;
    color: var(--color-muted);
    padding: 8px 0;
    position: relative;
}

.main-nav a::after {
    content: "";
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width var(--transition-fast);
}

.main-nav a:hover::after,
.main-nav a:focus::after,
.main-nav a.active::after {
    width: 100%;
}

.main-nav a.active {
    color: var(--color-primary);
}

body.dark-mode .main-nav a {
    color: var(--color-dark-muted);
}

body.dark-mode .main-nav a.active {
    color: #93C5FD;
}

.nav-toggle,
.mobile-menu {
    display: none;
}

.nav-toggle-label {
    display: none;
    cursor: pointer;
    flex-direction: column;
    gap: 4px;
}

.nav-toggle-label span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-text);
}

body.dark-mode .nav-toggle-label span {
    background-color: var(--color-dark-text);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.theme-toggle {
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 10px 16px;
    font-weight: 500;
    cursor: pointer;
    color: var(--color-muted);
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.theme-toggle:hover,
.theme-toggle:focus {
    background-color: rgba(11, 61, 145, 0.08);
    color: var(--color-primary);
}

body.dark-mode .theme-toggle {
    border-color: rgba(96, 165, 250, 0.4);
    color: var(--color-dark-muted);
}

body.dark-mode .theme-toggle:hover,
body.dark-mode .theme-toggle:focus {
    background-color: rgba(96, 165, 250, 0.12);
    color: #BFDBFE;
}

.hero {
    padding-top: 120px;
}

.hero-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 48px;
    align-items: center;
}

.hero-content h1 {
    font-size: 2.75rem;
    margin-bottom: 16px;
}

.hero-points {
    list-style: none;
    padding: 0;
    margin: 24px 0 32px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.hero-points li {
    padding-left: 28px;
    position: relative;
    color: var(--color-muted);
}

.hero-points li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-size: 1.5rem;
    line-height: 1;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 24px;
    margin-bottom: 48px;
}

.metric-card {
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}

body.dark-mode .metric-card {
    background-color: var(--color-dark-surface);
    border-color: rgba(148, 163, 184, 0.2);
}

.metric-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
}

.metrics-layout {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 48px;
    align-items: center;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 24px;
}

.feature-card {
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-sm);
    min-height: 240px;
    border: 1px solid var(--color-border);
}

body.dark-mode .feature-card {
    background-color: var(--color-dark-surface);
    border-color: rgba(148, 163, 184, 0.2);
}

.feature-illustration {
    margin-top: 48px;
}

.workflow-steps {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 24px;
}

.workflow-step {
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: 28px;
    border: 1px solid var(--color-border);
    position: relative;
}

body.dark-mode .workflow-step {
    background-color: var(--color-dark-surface);
    border-color: rgba(148, 163, 184, 0.2);
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(11, 61, 145, 0.12);
    color: var(--color-primary);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    font-weight: 700;
    margin-bottom: 16px;
}

body.dark-mode .step-number {
    background-color: rgba(96, 165, 250, 0.1);
    color: #93C5FD;
}

.compliance-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 48px;
    align-items: center;
}

.integration-content {
    max-width: 840px;
}

.security-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}

.security-box {
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: 28px;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

body.dark-mode .security-box {
    background-color: var(--color-dark-surface);
    border-color: rgba(148, 163, 184, 0.2);
}

.implementation-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 48px;
    align-items: center;
}

.faq-list {
    display: grid;
    gap: 16px;
}

details {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 20px 24px;
    transition: border-color var(--transition-fast);
}

body.dark-mode details {
    background-color: var(--color-dark-surface);
    border-color: rgba(148, 163, 184, 0.2);
}

summary {
    list-style: none;
    cursor: pointer;
    font-weight: 600;
    color: var(--color-text);
    position: relative;
    padding-right: 32px;
}

body.dark-mode summary {
    color: var(--color-dark-text);
}

summary::after {
    content: "＋";
    position: absolute;
    right: 0;
    top: 0;
    font-size: 1.2rem;
    transition: transform var(--transition-fast);
    color: var(--color-primary);
}

details[open] summary::after {
    transform: rotate(45deg);
}

details[open] {
    border-color: var(--color-primary);
}

.faq-content {
    margin-top: 16px;
    color: var(--color-muted);
}

body.dark-mode .faq-content {
    color: var(--color-dark-muted);
}

.contact-cta-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 48px;
    align-items: start;
}

.contact-details p {
    margin-bottom: 8px;
    color: var(--color-text);
    font-weight: 500;
}

body.dark-mode .contact-details p {
    color: var(--color-dark-text);
}

.contact-form-wrapper {
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
}

body.dark-mode .contact-form-wrapper {
    background-color: var(--color-dark-surface);
    border-color: rgba(148, 163, 184, 0.2);
    box-shadow: none;
}

.contact-form .form-row {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 16px;
}

.contact-form label {
    font-weight: 600;
    color: var(--color-text);
}

body.dark-mode .contact-form label {
    color: var(--color-dark-text);
}

.contact-form input,
.contact-form textarea {
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    font-size: 1rem;
    font-family: var(--font-base);
    background-color: #FFFFFF;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

body.dark-mode .contact-form input,
body.dark-mode .contact-form textarea {
    background-color: #111827;
    border-color: rgba(148, 163, 184, 0.4);
    color: var(--color-dark-text);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(11, 61, 145, 0.15);
}

.contact-form textarea {
    resize: vertical;
}

.form-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-disclaimer {
    font-size: 0.85rem;
    color: var(--color-muted);
}

body.dark-mode .form-disclaimer {
    color: var(--color-dark-muted);
}

.site-footer {
    background-color: var(--color-footer);
    color: #E2E8F0;
    padding: 64px 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 48px;
    margin-bottom: 32px;
}

.site-footer a {
    color: #E0F2FE;
}

.site-footer h4 {
    color: #FFFFFF;
    margin-bottom: 16px;
}

.footer-nav ul,
.footer-legal ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 8px;
}

.footer-meta {
    border-top: 1px solid rgba(148, 163, 184, 0.3);
    padding-top: 16px;
    text-align: center;
    font-size: 0.9rem;
    color: #CBD5F5;
}

.cookie-banner {
    position: fixed;
    inset: auto 16px 16px 16px;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 24px;
    z-index: 200;
    max-width: 420px;
    display: none;
}

body.dark-mode .cookie-banner {
    background-color: var(--color-dark-surface);
    border-color: rgba(148, 163, 184, 0.2);
    color: var(--color-dark-text);
}

.cookie-banner.visible {
    display: block;
}

.cookie-content h2 {
    margin-top: 0;
    margin-bottom: 12px;
}

.cookie-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 16px;
}

.cookie-link {
    font-weight: 600;
}

.theme-toggle {
    min-width: 120px;
}

.module-grid,
.process-steps,
.media-grid,
.delivery-grid,
.info-grid,
.response-grid,
.values-grid {
    display: grid;
    gap: 24px;
}

.module-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.process-steps {
    grid-template-columns: repeat(5, minmax(0, 1fr));
}

.media-grid,
.delivery-grid,
.info-grid,
.response-grid,
.values-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.timeline {
    display: grid;
    gap: 24px;
}

.timeline-entry {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 24px;
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: 24px;
    border: 1px solid var(--color-border);
}

body.dark-mode .timeline-entry {
    background-color: var(--color-dark-surface);
    border-color: rgba(148, 163, 184, 0.2);
}

.timeline-date {
    font-weight: 700;
    color: var(--color-primary);
}

body.dark-mode .timeline-date {
    color: #93C5FD;
}

.governance-grid,
.collaboration-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 48px;
    align-items: center;
}

.collaboration-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}

.value-card,
.module-card,
.process-step,
.media-card,
.delivery-card,
.info-card,
.response-card {
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: 28px;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

body.dark-mode .value-card,
body.dark-mode .module-card,
body.dark-mode .process-step,
body.dark-mode .media-card,
body.dark-mode .delivery-card,
body.dark-mode .info-card,
body.dark-mode .response-card {
    background-color: var(--color-dark-surface);
    border-color: rgba(148, 163, 184, 0.2);
    box-shadow: none;
}

.cta-box {
    text-align: center;
    background: linear-gradient(135deg, rgba(11, 61, 145, 0.92), rgba(22, 163, 74, 0.85));
    color: #FFFFFF;
    padding: 48px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.cta-box .btn-secondary {
    background-color: rgba(255, 255, 255, 0.18);
    color: #FFFFFF;
}

.legal-content h1 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.legal-content h2 {
    margin-top: 48px;
    margin-bottom: 16px;
    font-size: 1.75rem;
}

.legal-content h3 {
    margin-top: 32px;
    margin-bottom: 12px;
}

.legal-content p,
.legal-content ul,
.legal-content ol {
    max-width: 840px;
}

.legal-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 16px;
}

.legal-table th,
.legal-table td {
    border: 1px solid var(--color-border);
    padding: 12px;
    text-align: left;
}

body.dark-mode .legal-table th,
body.dark-mode .legal-table td {
    border-color: rgba(148, 163, 184, 0.3);
}

.legal-table th {
    background-color: rgba(11, 61, 145, 0.08);
}

body.dark-mode .legal-table th {
    background-color: rgba(96, 165, 250, 0.12);
}

.thanks-section {
    padding-top: 120px;
    padding-bottom: 120px;
}

.thanks-content {
    max-width: 720px;
    margin: 0 auto;
    background-color: var(--color-surface);
    padding: 48px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
}

body.dark-mode .thanks-content {
    background-color: var(--color-dark-surface);
    border-color: rgba(148, 163, 184, 0.2);
    box-shadow: none;
}

.thanks-summary {
    display: grid;
    gap: 16px;
    margin: 24px 0 32px;
}

.thanks-summary div {
    display: grid;
    gap: 4px;
}

.thanks-summary dt {
    font-weight: 600;
    color: var(--color-text);
}

body.dark-mode .thanks-summary dt {
    color: var(--color-dark-text);
}

.thanks-summary dd {
    margin: 0;
    color: var(--color-muted);
}

body.dark-mode .thanks-summary dd {
    color: var(--color-dark-muted);
}

@media (max-width: 1200px) {
    .metrics-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .feature-grid,
    .workflow-steps,
    .security-grid,
    .process-steps {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .media-grid,
    .delivery-grid,
    .info-grid,
    .response-grid,
    .values-grid,
    .module-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .collaboration-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 992px) {
    section {
        padding: 64px 0;
    }

    .header-container {
        grid-template-columns: auto 1fr auto;
    }

    .main-nav {
        display: none;
    }

    .header-actions {
        display: none;
    }

    .nav-toggle-label {
        display: flex;
    }

    .mobile-menu {
        display: block;
        position: fixed;
        inset: 0;
        background-color: rgba(17, 24, 39, 0.98);
        color: #FFFFFF;
        transform: translateX(100%);
        transition: transform var(--transition-fast);
        padding: 32px;
        overflow-y: auto;
    }

    body.dark-mode .mobile-menu {
        background-color: rgba(17, 24, 39, 0.98);
    }

    #nav-toggle:checked ~ .mobile-menu {
        transform: translateX(0);
    }

    .mobile-menu-head {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 24px;
        font-size: 1.25rem;
        font-weight: 600;
    }

    .mobile-close {
        font-size: 2rem;
        cursor: pointer;
    }

    .mobile-menu ul {
        list-style: none;
        padding: 0;
        display: grid;
        gap: 16px;
        margin-bottom: 32px;
    }

    .mobile-menu a {
        color: #E5E7EB;
        font-size: 1.1rem;
    }

    .mobile-menu-footer p {
        margin: 0;
        color: #E5E7EB;
    }

    .hero-grid,
    .metrics-layout,
    .feature-grid,
    .workflow-steps,
    .compliance-grid,
    .implementation-grid,
    .contact-cta-grid,
    .hero-grid,
    .governance-grid {
        grid-template-columns: 1fr;
    }

    .hero {
        padding-top: 96px;
    }

    .hero-content h1 {
        font-size: 2.25rem;
    }

    .contact-form-wrapper {
        padding: 24px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .timeline-entry {
        grid-template-columns: 1fr;
    }

    .metrics-grid,
    .security-grid,
    .feature-grid,
    .workflow-steps,
    .module-grid,
    .process-steps,
    .media-grid,
    .delivery-grid,
    .info-grid,
    .response-grid,
    .values-grid,
    .collaboration-grid {
        grid-template-columns: 1fr;
    }

    .cookie-banner {
        inset: auto 16px 16px 16px;
        max-width: none;
    }
}

@media (max-width: 600px) {
    html {
        font-size: 15px;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .btn {
        width: 100%;
    }

    .hero-actions {
        flex-direction: column;
    }

    .thanks-content {
        padding: 32px;
    }

    section {
        padding: 56px 0;
    }
}